looking here:
https://coinmarketcap.com/exchanges/coinexchange/it seems to me that they didn't have large volumes
they launched the exchange in 2016, which means that it is a exchange that is no more than 5 years old in this market and they are already closing.
They definitely have had very low volumes and that is the reason for their
slowdeath ~ pun intended.
They are old but yet for several years they didn't get much volume maybe they failed on promotional aspect..
This is one of the biggest reasons for their failure. In a niche market where competition were/are popping up day and night, the least they should have done is double down on promotion. Whatever little effort they made were clearly not enough.
Coinexchange team is from Australia also I think. You can ask the Equal dev to confirm.
I have had the most amount of interaction with
Silky from Equal team, and despite the fact that Equal were listed there on Coinexchange, it does not really mean that the exchange is from the country as that of Equal.. however, I've asked this question, awaiting reply now.